Drill stand and gauge



April 6, 1948.

J. F. KELLEM DRILL sum) AND GAUGE Filed June 5, 1945 5 2 ai 4$+ TT I I [a 22 Patented Apr. 6, 1948 DRILL STAND AND GAUGE James F. Kellem, Vancouver, Wash., assignor of one-half to Thomas E. Meade, Vancouver,

Wash.

Application June 5, 1945, Serial No. 597,629

3 Claims. (01. 77-62) This invention relates to adjustable drill stands, holding and manipulating devices and the like, and more particularly to a gauge attachment for such devices to enable the operator to ascertain the proper location of the device in the boring of one or more holes in a piece of work at certain predetermined distances apart in a direction either from the edge of the piece of work or from hole to hole.

An object of the invention is to improve generally upon devices of this kind and at the same time simplify the construction not only to minimize the cost of production but to also facilitate the adjustment of the device and its application to the work in a practical and eflicient manner.

Other objects and advantages to be attained will hereinafter more fully appear in the following description.

A practical but non-limiting exemplification of the invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a side elevational view of the device applied to the work with parts of the device shown in section;

Figure 2 is a view taken at right angles to the showing in Figure 1;

Figure 3 is a partial plan view and horizontal section on the line 3-3 of Figure 1; and

Figure 4 is a fragmentary sectional view of one of the gauge members of the device taken on or about the line 44 of Figure 1.

Referring now to the drawings in detail, the numeral 5 designates, generally, a piece of Work in which is to be bored a hole or a multiplicity of holes, one of which holes is indicated by the circular dotted line and designated by the numeral 6 in the fragmentary, corner, face View of the piece of work as shown in Figure 3. In this connection, while the present invention is not absolutely limited thereto, the device of the invention is primarily and more particularly intended and adapted for use in boring a large number of holes in a piece of work in ship building and the like. That is to say, either in timbers or large sheets of material, such as, for example, in floor coverings of flat tops which is the common terminology for airplane carriers and the like. Anyway, in work where there is required a large number of holes definitely located with respect to the margin of the piece of work or from hole to hole.

more particularly with the gauging of the loca- 2 rangement of drill stand or manipulating element for the boring tool.

For the purpose ofillustration of the present invention, the gauging device is attached to a substantially frusto-conical, open, cage-like type of stand or element 1. As shown, the element 1 has a circular top portion or annulus 8 and a base portion 9 of somewhat larger diameter. The lower portion 9 is generally circular throughout the major portion thereof but one side thereof is flattened, as at Ill. The annular top portion 8 and base portion 9 are connected by longitudinal bars or narrow plates ll, thus making the element 1 cage-like and in the form of a hollow, open-sided, truncated cone. 7

In the form shown, the cage-like element 1 has six of the longitudinal bars or narrow plates II and, of course, six relatively large openings between the members I I so as to afford ample sized sight openings for observation of the adjacent end portion of a drill bit inserted and supported in the element 7 as will be presently described more fully in detail and also to observe the adjacent surface portion of the work where the hole is to be bored. As above indicated, this element 1 may be varied in size and form, as far as the present invention is concerned, but, in any case, the same must be of ample rigidity and have ample sight opening therein for the purposes of the present invention.

Formed integrally or otherwise suitably provided at the upper end of the cage-like element 1 is an end plate I2 having a central opening [3 therein (see Figure 1) and extending upwardly from said end wall or plate l2, and annularly coincident with the edge of the opening I3 is a tubular member [4 which may be either formed integrally with the wall or plate l2 or otherwise rigidly attached thereto at its inner end. The tubular extension M of the end Wall or plate l2 of the element 1 may be made in any desirable length, but, in any case, the length should, be suficient to afford ample longitudinal bearing surface for a drill bit which is inserted freely movable and longitudinally slidable in the bore of said tubular extension it. As indicated in Figure l, the bore 15 of said tubular extension Id of the cage-like stand or holding and manipulating element 1 is of a diameter corresponding to the major outside diameter of the drill bit which is shown in dotted lines and designated by the numeral 1 8. In the general use of devices of this kind, the element 1 is utilized as a manuallymanipulable stand or holding and guiding device for the drill bit and said element 1, in use, rests slidably at its lower end on the face of a piece of work to be bored, where it may be manipulated by hand to different desired positions on the piece of work, and before the drilling operation is started the lower end portion I! of the drill bit i6 is, of course,in a slightly raised position above the surface of the work. Then, with the element H properly positioned and usually held in place by o e an o the oper t the dri b is o er ated under the control of the operator by the use of his other hand, or, in some cases, where the drill bit is provided, arranged and. adapted for operation Without manipulation of one of the,

operators hands, the operator may then use both hands in adjusting the element '1 into position and there holding it for the operation of boring.

The gauge attachment of the present invention is attached to the lower base portion of the element 1 at one side thereof. In the application of the gauge attachment of the present invention to the cage-like element I, particularly in the ex mpl fi ati n il ust ated in. h rawings, th gauge attachment is applied to the flattened side portion it! of the annular base member 9 of the el m nt 1- Th s pa icular flatte i g ormation H) at one si e o th ba e o he ele nt 1 is made more esp i lly o ac l tate the u e of the de for th ring of a ho i the p e o work at a m mum dis ee fr m the ad acent ma gin o the w h Tha s o say, n ne a jus m nt oi the g uge a tachme t th s me s laterall of the base po ion of he elem t! and t an o wa d adj stm nt of h attachmen for a la ger dim nsion, a c n nuo s o ou er ormatio o the sebo ti n w u d s f oa ut. or adj s men inwardly to bore a hole in the piece of work at a de i d mi imum s ance from t e djac m ren of the W the e ntinuous circul base. f mat on o the element 1 o ld not P rmit suiiio eht nwa d adju ment f the gauge attachm nt. i th s a ticular purpos Th iore t e flat ening o h base rtion has t U1, ermits an inc eased ov m nt i th gauge at achmen inwardl o ards, th ax s f he dev ce and. bviou y t is flat nin rmation o he ba p rtion '0 may be var ed. to a o siderable xt nt in diffe ent adap ations o the inven on, hat is to say! th fla ening o the base member 9 may be made so to brin the a iiolo er to he axi o th device, wh reby h fo m of the base porti n, 9 ma be nearl o subs ant a ysem o rouler rathe tha m re near y of a omp et cir ular orm. ju t so b the e s e fd ie t internal c earan in h lemen 1 fo h k n of the dr ll b t.

As shown, he tense a tachment comprises a elongat d. bod m mbe wh m y be o any snitble dr ss e io a fo m As sho n m re arly in fi ure 4, th od memb I is o a tubu a form a i a tangu ar cross section, Th ody m mber i is ro ided t o pos t s des. f ts m dd e wi h a pai of s a ed-apar hereon ie et g xtens ons l hi h re s id biy fit d b ier hold ng g ide membe 2. rigidlyattached to the base aortic-o 9 of he e ement 1 and extendin o ordwise theree toss in a a el re ation to e ch. othe se Fig re i)- To e eas ab y hold he l e members '8 o the b d member it in di. r n lon itudina ly adj s ed si ion the sb p t ne and holding member 29 set scre Z-i or othe su table releas bl holdi g course, also with relation to the axis of the drill bit i6 which is coincident with the axis of the element 1.

Slidably fitted in the opposite end portions of the body member i8 is an opposed pair of adjustable gauge plates 22, 22'. As shown, the plates 22, 22 are plain flat plates of transverse dimensi ns co res on in to the r a ula pen n in the tubular body member I8, the fitting of the members 22, 22' in the member l8 being, for practical purposes, preferably relatively tight so as to permit the members 22, 22 to be moved endwise in the member l8 yet the same are frictionelly held in plate- In the closed positions of the members 22, 22 their inner ends meet coincident with a transverse, medial line, between the opposite ends of the member 58 and each of the members 22, 22 are'individually adjustable outward and inward in their respective receivin portions of the member it.

Any suitable means may be provided for conveniently grasping the outer end portions of the members 22, 22", but, as shown, they are provided wi h plain i ht a g r nd x ensions 23, 3' respe tively. The embers 22, 22 are p d with graduations or scale markings 24, 24', respectively, which markings 2 4, 2 2' are readable in connection with the adjacent end portions of, the ubu a bod memb r 18, it being unde o d that these markings on the slide members 22, 22' are etermin d in relation to th med l ne et n the nds of he member 8, whi h med al li eis also o ino ent transver e y w h r spe t to th T of the element 1 of the device, just as the markings it on the l e membe s t of the body member 13 are coincident with the axis of the device but spaced apart and laterally therefrom.

The slide memb rs 22', 22' may be without any fas enin m ans an riction alone dep ded upon to retain them in their longitudinall adiusted pos tio s.- As shown ho e th t ula stra ht ed e ody mem er I8 i p ovid d ne its opposite ends with set-screws 25, 25' arranged and. ada ed to e i h e ed a inst a d s i members 22, 22 respectively, to hold them releasably in p a e- It is further noted that, preferably, the .6% exten ions Q. of he bo y memb r 18 re om the inner ace f the m m er 8 djac t th t edge portion thereof. By this form and arrange: ment the major body portion of the member 18 depends considerably downward from the supportin l gs It so that the mem l8 unc i ns as a. straightaedge and guide flange which is brought abuttingly ainst the adj nt ed portion of the piece of work in setting the device in place for the boring of a hole in the work relative to its edge portion. By this provision and arrangement, it is readily seen that the adjustment is accomplished easily and with facility in positioning the element I of the device for the boring of a hole at a desired position on the piece or work. That is to say, the adjustment of the straight-edge or guide flange portion I 8 of the de i e latera y ith re at to e axis. d placi g the member l8 against the edge of h piece, of work gives the proper lateral positionin of the device and by sliding the member 18 along the edge portion and having extended the outer end portion of the slide member 22 or 22, as the ase m y e ne sary, he positioning f t element 1 longitudinally from the adjacent end i the piec of w rkor om h le o hole is qu ly and accurately accomplished by the operator (for example, see Figure 3).

The foregoing are explanations of only a few practical angular applications of the device to a piece of work and it is to be understood that other ways of applying and using the device are feasible and practical. That is to say, the member [8 or straight-edge member of the device may have its leg portions I9 withdrawn entirely from the supporting and guide members 20, the member I8 reversed so that its major body portion projects upwardly from its leg members instead of depending downwardly therefrom to function as a stop and guide flange as shown in the drawings, in which reverse position of the member I8 the leg members I9 are reinserted in the supporting and guide members 20 so that the base portion 9 of the element 1 may rest endwise on the surface to be bored and accordingly moved slidably across the same, at will, which movement is permitted because the gauge member I8 is supported at an elevation freely above and clear of the face of the work.

The illustrated exemplification of the invention is but one practical adaptation and embodiment. Hence the same admits of considerable modification without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the invention is not limited to the specific construction and arrangement shown.

What is claimed is:

1. In a guiding and holding device for drills and the like, a cage-like stand for guiding the drill toward the work, a gauge attachment telescopically related to the stand for movement at right angles to the axis of the drill and including a body member extending at right angles to the direction of movement and having means for engaging the edge of the work, and a pair of gauge plates each telescopically related to the body member and movable toward or from one another.

2. In a guiding and holding device for drills and the like, a cage-like stand for guiding the drill toward the work and also including parallel guide means, a, gauge attachment telescopically related to the guide means for movement at right angles to the ams of the drill and including a body member extending at right angles to the direction of movement and having meansfor engaging the edge of the work, and a pair of gauge plates each telescopically related to the body member and movable toward or from one another.

3. In a guiding and holding device for drills and the like, a cage-like stand for guiding the drill toward the work and having at its lower end a flat edge, a gauge attachment telescopically related to the stand for movement at right angles to the axis of the drill and including a body member extending at right angles to the direction of movement and parallel to the fiat edge and hav ing means for engaging the edge of the work, and a pair of gauge plates each telescopically related to the body member and movable toward or from one another.

JAMES F. KELLEM.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 683,664 Schramek et al. Oct. 1, 1901 809,069 Lovett Jan. 2, 1906 1,018,153 Bank Feb. 20, 1912 1,191,906 Miller et a1 July 18, 1916 1,385,227 Pyron July 19, 1921 1,615,668 Anderson Jan. 25, 1927 2,083,490 Boker June 8, 1937 2,341,107 MacDonald Feb. 8, 1944 

